Answer:
In year 2013 annual maintenance done = $ 3,000,000
Out of this 85% is expected to renew in 2014 = [tex]0.85\times3000000[/tex] = $2,550,000
Now Sales in 2013 = $3,000,000
60% of these sales = [tex]0.60\times3000000[/tex] = $1,800,000
Now out of this 60%, 20% annual maintenance was expected to be paid
In 2014 = [tex]0.20\times1800000[/tex] = $360000
So, Total annual maintenance in 2014 = [tex]2550000+360000[/tex]
= $2,910,000